Fountain pen



'5. M. SmmV 2,019,734

Nov. 5,l 1935.

FOUNTAIN PEN Filed nec. a. 1954 Patented Novo 5 1935 Unirse srn'ras PATENT GFFICE 2,019,734 roumain Pan Solomon M. Sagen Glencoe, Ill. o Application December 8, 1934, Serial No. '156,567 s claims. i (ci. igea-5o) This invention relates to an improved fountain pen' and more particularly a writing unit including interlocking feed bar members between which a two-way dat pen point is inter-locked for insertion with the feed bar members into the section of a. fountain pen.

It is an object of this invention to provide a fountain pen with a at two-way pen point.

It is also an object of this invention to provide a fountain pen with a ilat two-way pen point constructed to be interloclxed between feed bar members engageable in the fountain pen section.

Itis a further object of this invention to provide a fountain pen with a feed bar of the split type, constructed to lockingly interfit with a at two-way pen point which when engaged in an ink supply holder with the feed bar can be used to write with from both sides of the pen point tip.

It is furthermore an object of this invention to provide a fountain pen with an apertnred flat two-way pen point which is lockingly engaged in a split feed har member engageable in the fountain pen section, said feed bar adapted to supply ink to either side of the fiat pen point depending upon which side of the pen point nibs are being used to write with.

Another object of the invention is to provide a fountain pen with an improved writing unit consisting of male and female feed bar members adapted to lockingly intert with one another and with a. two-way at pen point, to hold the pen point against slidable movement in the feed bar which is so constructed that ink may be fed to either side ofthe pen point, thereby permitting the opposite sides of the at pen point to 'be selectively used for writing.

It is an important object of this invention to provide a writing pen consisting of a dat mounting shank which terminates at one end in a iiat split head portion which is tapered to provide a two-way writing tip permitting either side of the pen point tip to be used for writing. l

Other and further important objects of this invention will be apparent fromy the disclosures in the specification and the accompanying drawing. f

The invention (in a preferred form) is illustrated inthe drawing and hereinafter more fully described.

On the drawing:

Figure 1 is a fragmentary elevational view of a fountain pen barrel and section having mounted therein an improved sectional bar and a flat two-way pen point embodying the principles of this invention.

Figure 2 is an enlarged elevational view of the two-way fiat pen point removed from the fountain pen. a

Figure 3 is an enlarged bottom end view of the both feed bar sections in place and interlocked l5x with the pen point.

Figure 'l is a side elevational view of a modified form of writing unit for a fountain'pen, showa ing the lining sleeve of the fountain pen section engaged around'the feed bar members and inter- 2O fitting with the shank portion of 'the pen point.

Figure 8 is asectional view taken on line VDI-Vm of Figure 4'7 showing the modified form of writing unit engaged in a fountain pen lsec-- tion. t5

Figure 9 is a fragmentary sectional view similar to Figure 4 but disclosing another modified form of a sectional feed bar, lockingly engaging the nat two-wayvpen point, with the feed bar designed for use in a fountain pen of the plunger 30 nlling type and including an ink intake tube conm nected with the feed bar.

As shown on the drawing:

The reference numeral i indicates a fountain pen barrel having secured in one end thereof a 35 section 2 the outer end of which is provided with an extension sleeve or collar 3 which serves as anfink guard member extending to the outside of a peripheral stop bead or ange Ii.

Projecting through the chambered ink guard 40 t! and up through the section 2 in tight frictional engagement with. the inner wall thereof is an improved writing unit embodying the principles of this invention. .The writing unit cornprlses a split or multiple sectioned ink feed barmeans consisting of a female feed bar 5 semi-- cylindrical in shape and terminating at one end in a tapered finger portion 6. The female feed bar t ris flat on its inner side and said at surface is provided with a plurality of parallel ink i feed grooves 'i as clearly illustrated in Figure 5. The inner at side of the finger or tip end 6 of the female feed bar 5 is p ovided with a pair of spaced recesses or sockets for the removable reception of a pair of teeth or lugs. The teeth or lugs 8 are integrally formed on the fiat inner side of the finger or tip portion III of a semicylindrical male feed bar section II. The inner flat side of the male feed bar Il is also provided with a plurality of parallel ink feed grooves 1.

through openings I2 provided in the shank portion I3 of a flat metal. pen point the shank portion I3 of 'which flares outwardly and has integrally I formed on the enlarged end thereof a tapered tip il. The tip portion I4 of the pen point is provided with a longitudinal slot I5 which splits the tip of the pen point to provide a pair of writing v nibs IB on each side of the tip of the pen point to make the same a two-way or multiple type pen point. As clearly illustrated in Figures 2 and 5,

the inner end of the pen point slot I5 terminates in an opening or pocket I1 provided for the purpose of receiving ink .from the feed bar feed grooves 1 which are positioned on opposite sides of the flat pen point shank I3 so that ink from the fountain pen barrel may be fed to either side of the two-way pen point to a selected pair of the writing nibs I6 thereby making it possible to write from either side of the tip portion of the improved pen point.

In the modified form of writing unit illustrated in Figures 'I and 8 of the drawing, a pair of interiitting male and female feed bar sections I and .II similar to those illustrated in Figures 4 and 6 are positioned with the iiat sides thereof abutting one another so that the tapered finger portions 8 and I0 engage against opposite sides of a hat metal .pen point comprising a shank or body portion I1 having a pair 'of openings I l therein for the reception of the teeth or lugs l formed on the inner nat side of the male feed bar member I I. As clearly illustrated in Figure 8 the outer end of the pen point shank I1 has the corners thereof cut away to provide stop shoulders I l positioned on opposite sides of a reduced tail piece 20. Integrally formed on the widened end of the pen point shank I1 is a pen tip 2l which is flat and lies in the same plane as the fiat shank portion of the pen point. 'I'he tapered tip 2| of the pen point is provided with a longitudinally disposed slot 22 the inner end of which terminates in a pocket or opening 28 for receiving ink from the feed groove 1 of the feed bars 5 and II positioned on opposite sides of the pen point and interlocked therewith. The pen point slot 22 divides the tapered end of the tip 2| to form. a pair of writing nibs 24 on each side of the writing tip of the flat pen point to make the same a multiple or two-way pen point.

For tle purpose of holding the feed bars -and the pen point associated with one another a sleeve 2l is engaged over the semi-cylindrical shank ends of the feed bars to hold the same clamped together in locking engagement with the at pen point. One end of the sleeve 25 'is provided with 'a pair or emmen-many opposite notches n into which the shoulder portion Il of the shank portion of the pen point seat to hold the retaining sleeve 25 against rotation with respect to the feed bar unit. As illustrated in Figure 'I the feed bar members interlocking with .the iiat pen point, and the sleeve 25 engaged over the feed bar members and interlocking with the pen point form a writing unit which is adapted to beftightly inserted into the section 2 of the fountain pen similar to the arrangement illustrated in Figure 8. 5

Figure 9 illustrates a modified form of a writing unit consisting of a two-way pen point and a sectional or split feed bar constructed for use in a plunger filling type of fountain pen equipped with an ink intake tube. In this type of writing unit i0 the pen point is constructed identical with the pen point illustrated in Figure 2 and like parts are numbered accordingly. The pen point is clamped between a female feed bar member 21 and a male feed bar member 28 which lockingly l5 interiit one another similar to the arrangement of the feed bar members illustrated in Figure 6. 'I'he male feed bar member has teeth or lugs 9 which project through openings in the at pen point and engage in recesses provided in the 20 inner at side of the female feed bar member 21. Each of the feed bar members 21 and 28 is provided with one or morel ink feed or supply grOQves 29 positioned on opposite sides of the shank Il of the pen point. The upper` ends of 25 the ink feed grooves 29 converge and connect up with a single ink supply groove. formed in the female feed bar member 21 and having the end thereof terminating in the end surface of the feed bar member 21 and in communication with 30 the ink supply chamber of the fountain pen barrel I. 'Ihe abutting upper or inner ends of the feed bar members 21 and 28 are provided with an axial pocket or opening in which the lower or intake end of an ink intake tube 3l of the foun- 35 tain pen is engaged. For the purpose of feeding ink into the fountain pen the male feed bar member 28l is provided with an ink intake passage 32 the inner end of which communicates with the passage in the ink intake tube I I while the 40 lower end of the passage 82 opens through one side of the outer end portion of the male feed bar member 28.

When the writing end of the fountain pen of the type illustrated in Figure 9 is inserted into 45 a quantity of ink and 'the fountain pen nller mechanism is operated ink is drawn upwardly through the intake e 32 and into the ink intake tube SI from which it enters the ink supply chamber ofthe fountain pen barrel I. When the fountain pen is used to write with, ink from the fountain pen barrel is discharged through the outlet passage 3l and flows into theink feed grooves 2l of the feed bar members 21 and 28 to supply ink to the writing nibs I8 on one side 55 of the tip portion of the pen point which is being used to write with.N The pen point is of the twoway type hereinbefore described so that the nibs I8 on either side of the tip of the pen point may be selectively used; for writing purposes.

From the foregoing description it will be noted that an improved writing unit has been developed which is adaptable for use in various types of fountain pens, said writing unit consisting of a two-way flat pen point which is lockingly engaged between grooved ink feed bar members which internt one another and also interflt the pen point to hold the same fin position and prevent removal thereof from the fountain pen when the feed bar members are engaged -in a fountain pen section. The interlocking arrangement of the feed bar members and the 'pen point insures a positive fool-proof positioning of the pen point with respect to the feed bar members and the ink supply grooves thereof. Attention is also called to the 'l5 It will of course be understood that various details of construction may be varied through a wide -range without departing from the principles of this invention and it is therefore not the purpose to limit the patent granted hereon otherwise than necessitated by the scope of the I claim asmy invention:

1. A fountain pen writing unit comprising intertting male and female feed bar members, and a fiat -two-way pen point clamped between the feed barmembers and including means formed on the male feed bar. member and projecting through the pen point to seat in the female feed bar member 2. Afountain pen writing unit comprising intertting feed bar members, a pen point clamped therebetween, and a sleeve engaged around the feed bar members and notched at one end to receive the pen point and hold the same'against rotation Vwith respect to said s1eeve.

3. A fountain pen writing unit comprising a recessed feed bar member, a second feed bar member having projections thereon tting into the appended claims.

recesses of said rst mentioned feed bar member, and a. fiat apertured two-way pen point engaged between the feed bar members and having the projections of the second feed bar member projecting through the pen point apertures.

4. A fountain pen writing unit comprising a recessed feed bar member, a second feed bar member having projections thereon tting into the recesses of said rst mentioned feed bar member, and a iiat apertured two-way pen point engaged between the feed bary members and having the projections of the second feed bar member p'ro,

jecting through the pen point apertures, and a sleeve meansengaged over the feed bar members to hold the same clampedagainst opposite sides of the two-way pen point.

5. A fountain pen writing unit for insertion into a pen section, said unit comprising a plurality of intertting feed bar members, -a iiat ltwofway writing pen point clamped between the feed bar members and interfltting therewith, and a notched sleeve engaged around the feed bar members with the notches of said sleeve having portions of the pen point seated therein to hold the pen point locked against rotation with respect to said sleeve.

SOLOMON M. SAGER. 

